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National Weather Service Marine Forecast FZHW50 PHFO

FZHW50 PHFO 191933
CWFHFO

Coastal Waters Forecast
National Weather Service Honolulu HI
933 AM HST Sat Aug 19 2017

Hawaiian coastal waters within 40 nautical miles including the
Hawaiian Islands Humpback Whale National Marine Sanctuary.

PHZ100-200830-
933 AM HST Sat Aug 19 2017

Synopsis for Hawaiian coastal waters

A surface high will remain far northeast of the area and weaken
through Tuesday. A new surface high will build far north of the
area on Monday. A low aloft will pass north of the area through
early next week.



PHZ110-200830-
Kauai Northwest Waters-
933 AM HST Sat Aug 19 2017

REST OF TODAY
East winds 15 knots. Wind waves 3 feet.
Scattered showers.

TONIGHT
East winds 15 knots. Wind waves 4 feet. Scattered
showers.

SUNDAY
East winds 15 knots. Wind waves 3 feet. Scattered
showers.

SUNDAY NIGHT
East winds 15 knots. Wind waves 4 feet. Heavy
showers likely in the evening. Slight chance of thunderstorms
through the night. Scattered heavy showers after midnight.

MONDAY
East winds 15 knots. Wind waves 4 feet. Scattered heavy
showers and slight chance of thunderstorms.

MONDAY NIGHT
East winds 15 knots. Wind waves 4 feet. Heavy
showers likely and slight chance of thunderstorms.

TUESDAY
East winds 15 knots. Wind waves 6 to 7 feet. Scattered
showers.

WEDNESDAY
East winds 20 knots. Wind waves 7 feet. Scattered
showers. 



PHZ111-200830-
Kauai Windward Waters-
933 AM HST Sat Aug 19 2017

REST OF TODAY
East winds 15 knots. Wind waves 3 feet.
Scattered showers.

TONIGHT
East winds 15 knots. Wind waves 4 feet. Scattered
showers in the evening, then showers likely after midnight.

SUNDAY
East winds 15 knots. Wind waves 3 feet. Showers likely
in the morning, then scattered showers in the afternoon.

SUNDAY NIGHT
East winds 15 knots. Wind waves 4 feet. Scattered
heavy showers in the evening. Slight chance of thunderstorms
through the night. Heavy showers likely after midnight.

MONDAY
East winds 15 knots. Wind waves 4 feet. Heavy showers
likely and slight chance of thunderstorms.

MONDAY NIGHT
East winds 15 knots. Wind waves 4 feet. Heavy
showers likely and slight chance of thunderstorms.

TUESDAY
East winds 15 knots. Wind waves 6 to 7 feet. Showers
likely.

WEDNESDAY
East winds 15 knots. Wind waves 7 to 8 feet.
Scattered showers. 



PHZ112-200830-
Kauai Leeward Waters-
933 AM HST Sat Aug 19 2017

REST OF TODAY
East winds 15 knots. Wind waves 4 feet. Isolated
showers.

TONIGHT
East winds 15 knots. Wind waves 5 feet. Isolated
showers.

SUNDAY
East winds 15 knots. Wind waves 3 feet in the morning
then 2 feet or less. Isolated showers.

SUNDAY NIGHT
East winds 15 knots. Wind waves 3 feet. Isolated
showers in the evening, then scattered showers after midnight.

MONDAY
East winds 10 knots. Wind waves 4 feet. Scattered
showers and slight chance of thunderstorms in the morning, then
isolated showers in the afternoon.

MONDAY NIGHT
East winds 15 knots. Wind waves 4 feet. Scattered
showers.

TUESDAY
East winds 10 knots. Wind waves 4 to 6 feet. South
swell 3 feet. Scattered showers.

WEDNESDAY
East winds 20 knots. Wind waves 6 feet. South swell
3 feet. Scattered showers. 



PHZ113-200830-
Kauai Channel-
933 AM HST Sat Aug 19 2017

REST OF TODAY
Northeast winds 15 knots. Wind waves 4 feet.
Isolated showers through the day.

TONIGHT
Northeast winds 15 knots. Wind waves 5 feet. Isolated
showers.

SUNDAY
East winds 15 knots. Wind waves 3 feet. Scattered
showers in the morning, then isolated showers in the afternoon.

SUNDAY NIGHT
East winds 15 knots. Wind waves 4 feet. Isolated
showers.

MONDAY
East winds 15 knots. Wind waves 4 feet. Isolated
showers.

MONDAY NIGHT
East winds 15 knots. Wind waves 4 feet. Scattered
showers.

TUESDAY
East winds 15 knots. Wind waves 6 to 7 feet. South
swell 3 feet. Scattered showers.

WEDNESDAY
East winds 20 knots. Wind waves 7 feet. South swell
3 feet. Scattered showers. 



PHZ114-200830-
Oahu Windward Waters-
933 AM HST Sat Aug 19 2017

REST OF TODAY
East winds 15 knots. Wind waves 4 feet.
Scattered showers.

TONIGHT
East winds 15 knots. Wind waves 4 feet. Scattered
showers in the evening, then showers likely after midnight.

SUNDAY
East winds 15 knots. Wind waves 4 feet. Showers likely
in the morning, then scattered showers in the afternoon.

SUNDAY NIGHT
East winds 15 knots. Wind waves 5 feet. Showers
likely.

MONDAY
East winds 15 knots. Wind waves 4 feet. Slight chance
of thunderstorms in the morning. Showers likely through the day.

MONDAY NIGHT
East winds 15 knots. Wind waves 4 feet. Showers
likely.

TUESDAY
East winds 15 knots. Wind waves 6 to 7 feet. Showers
likely.

WEDNESDAY
East winds 20 knots. Wind waves 7 to 8 feet.
Scattered showers. 



PHZ115-200830-
Oahu Leeward Waters-
933 AM HST Sat Aug 19 2017

REST OF TODAY
East winds 15 knots. Wind waves 4 feet. Isolated
showers.

TONIGHT
East winds 20 knots. Wind waves 5 feet. Isolated
showers.

SUNDAY
East winds 15 knots. Wind waves 2 feet or less.
Isolated showers.

SUNDAY NIGHT
Northeast winds 15 knots. Wind waves 3 feet.
Isolated showers.

MONDAY
East winds 10 knots. Wind waves 3 feet. Isolated
showers.

MONDAY NIGHT
East winds 15 knots. Wind waves 4 feet. Scattered
showers.

TUESDAY
East winds 10 knots rising to 20 knots after midnight.
Wind waves 4 to 5 feet. Scattered showers.

WEDNESDAY
East winds 15 knots. Wind waves 5 to 6 feet. South
swell 3 feet. Scattered showers. 



PHZ116-200830-
Kaiwi Channel-
933 AM HST Sat Aug 19 2017

REST OF TODAY
Northeast winds 20 knots. Wind waves 4 feet.
Isolated showers.

TONIGHT
East winds 15 knots. Wind waves 4 feet. Scattered
showers in the evening, then isolated showers after midnight.

SUNDAY
Northeast winds 15 knots. Wind waves 4 feet. Isolated
showers in the morning, then scattered showers in the afternoon.

SUNDAY NIGHT
East winds 15 knots. Wind waves 5 feet. Scattered
showers in the evening, then isolated showers after midnight.

MONDAY
Northeast winds 15 knots. Wind waves 4 feet. Showers
likely in the morning, then isolated showers in the afternoon.

MONDAY NIGHT
East winds 15 knots. Wind waves 4 feet. Scattered
showers.

TUESDAY
East winds 15 knots. Wind waves 6 to 7 feet. Scattered
showers.

WEDNESDAY
East winds 20 knots. Wind waves 7 to 8 feet.
Scattered showers. 



PHZ117-200830-
Maui County Windward Waters-
933 AM HST Sat Aug 19 2017

REST OF TODAY
East winds 15 knots. Wind waves 4 feet.
Scattered showers.

TONIGHT
East winds 20 knots. Wind waves 4 feet. Showers
likely.

SUNDAY
East winds 15 knots. Wind waves 3 feet. Showers likely.

SUNDAY NIGHT
East winds 15 knots. Wind waves 4 feet. Showers
likely.

MONDAY
East winds 15 knots. Wind waves 4 feet. Showers likely.

MONDAY NIGHT
East winds 15 knots. Wind waves 4 feet. Showers
likely.

TUESDAY
East winds 15 knots. Wind waves 5 to 7 feet. Showers
likely.

WEDNESDAY
East winds 20 knots. Wind waves 7 feet. Scattered
showers. 



PHZ118-200830-
Maui County Leeward Waters-
933 AM HST Sat Aug 19 2017

REST OF TODAY
East winds 20 knots. Wind waves 4 feet.

TONIGHT
East winds 15 knots. Wind waves 4 feet. Isolated
showers.

SUNDAY
East winds 15 knots. Wind waves 2 feet or less.
Isolated showers through the day.

SUNDAY NIGHT
East winds 10 knots. Wind waves 3 feet. Isolated
showers.

MONDAY
Northeast winds 10 knots. Wind waves 3 feet. Isolated
showers.

MONDAY NIGHT
East winds 10 knots. Wind waves 3 feet. Isolated
showers.

TUESDAY
East winds 10 knots. Wind waves 4 to 5 feet. Isolated
showers.

WEDNESDAY
Northeast winds 15 knots. Wind waves 6 feet.
Isolated showers. 



PHZ119-200830-
Maalaea Bay-
933 AM HST Sat Aug 19 2017

REST OF TODAY
North winds 20 knots. Wind waves 2 feet or less.

TONIGHT
North winds 20 knots. Wind waves 2 feet or less.
Isolated showers in the evening.

SUNDAY
North winds 20 knots. Wind waves 2 feet or less.
Isolated showers in the morning, then scattered showers in the
afternoon.

SUNDAY NIGHT
Northeast winds 20 knots. Wind waves 2 feet or
less. Scattered showers in the evening, then isolated showers
after midnight.

MONDAY
Northeast winds 20 knots. Wind waves 2 feet or less.
Isolated showers.

MONDAY NIGHT
North winds 20 knots. Wind waves 2 feet or less.
Isolated showers through the night.

TUESDAY
North winds 20 knots. Wind waves 2 feet or less.
Isolated showers.

WEDNESDAY
North winds to 25 knots. Wind waves 3 feet. 



PHZ120-200830-
Pailolo Channel-
933 AM HST Sat Aug 19 2017

REST OF TODAY
East winds 20 knots. Wind waves 4 feet.
Scattered showers late in the morning. Isolated showers in the
afternoon.

TONIGHT
East winds 20 knots. Wind waves 4 feet. Isolated
showers in the evening, then scattered showers after midnight.

SUNDAY
East winds 20 knots. Wind waves 3 feet. Isolated
showers in the morning, then scattered showers in the afternoon.

SUNDAY NIGHT
East winds 20 knots. Wind waves 4 feet. Scattered
showers in the evening, then isolated showers after midnight.

MONDAY
East winds 20 knots. Wind waves 4 feet. Scattered
showers in the morning, then isolated showers in the afternoon.

MONDAY NIGHT
East winds 20 knots. Wind waves 4 feet. Isolated
showers.

TUESDAY
East winds 20 knots. Wind waves 5 to 6 feet. Scattered
showers.

WEDNESDAY
East winds to 25 knots. Wind waves 6 to 7 feet.
Isolated showers. 



PHZ121-200830-
Alenuihaha Channel-
933 AM HST Sat Aug 19 2017

REST OF TODAY
East winds 20 knots. Wind waves 5 feet.
Scattered showers.

TONIGHT
East winds 20 knots. Wind waves 5 feet. Isolated
showers.

SUNDAY
East winds 20 knots. Wind waves 4 feet. Isolated
showers through the day.

SUNDAY NIGHT
East winds 20 knots. Wind waves 5 feet. Isolated
showers.

MONDAY
East winds 20 knots. Wind waves 5 feet. Isolated
showers.

MONDAY NIGHT
East winds 20 knots. Wind waves 4 feet. Isolated
showers.

TUESDAY
East winds 20 knots. Wind waves 6 to 7 feet. Isolated
showers.

WEDNESDAY
East winds to 25 knots. Wind waves 8 feet. Isolated
showers. 



PHZ122-200830-
Big Island Windward Waters-
933 AM HST Sat Aug 19 2017

REST OF TODAY
East winds 15 knots. Wind waves 4 feet.
Scattered showers.

TONIGHT
East winds 15 knots. Wind waves 4 feet. Scattered
showers in the evening, then showers likely after midnight.

SUNDAY
East winds 15 knots. Wind waves 4 feet. Showers likely
in the morning, then scattered showers in the afternoon.

SUNDAY NIGHT
East winds 15 knots. Wind waves 4 feet. Showers
likely.

MONDAY
East winds 15 knots. Wind waves 4 feet. Showers likely.

MONDAY NIGHT
East winds 15 knots. Wind waves 4 feet. Showers
likely.

TUESDAY
East winds 15 knots. Wind waves 5 to 7 feet. Showers
likely.

WEDNESDAY
East winds 15 knots. Wind waves 7 feet. Southeast
swell 3 feet. Scattered showers. 



PHZ123-200830-
Big Island Leeward Waters-
933 AM HST Sat Aug 19 2017

REST OF TODAY
Winds variable less than 10 knots west of the
Big Island...east 20 knots near South Point. Wind waves 6 feet.
Isolated showers late in the morning.

TONIGHT
Winds variable less than 10 knots west of the Big
Island...east 20 knots near South Point. Wind waves 6 feet. Haze
through the night. Isolated showers through the night.

SUNDAY
Winds variable less than 10 knots west of the Big
Island...east 15 knots near South Point. Wind waves 3 feet. Haze
through the day. Isolated showers through the day.

SUNDAY NIGHT
Winds variable less than 10 knots west of the Big
Island...east 20 knots near South Point. Wind waves 5 feet. Haze.
Isolated showers.

MONDAY
Winds variable less than 10 knots west of the Big
Island...east 15 knots near South Point. Wind waves 5 feet. Haze.
Isolated showers.

MONDAY NIGHT
Winds variable less than 10 knots west of the Big
Island...east 20 knots near South Point. Wind waves 4 feet. Haze
through the night. Scattered showers in the evening. Isolated
showers after midnight.

TUESDAY
Winds variable less than 10 knots west of the Big
Island...east 20 knots near South Point. Wind waves 6 to 8 feet.
South swell 3 feet. Haze. Scattered showers.

WEDNESDAY
Winds variable less than 10 knots west of the Big
Island...east to 25 knots near South Point. Wind waves 9 feet.
South swell 3 feet. Haze. Isolated showers. 



PHZ124-200830-
Big Island Southeast Waters-
933 AM HST Sat Aug 19 2017

REST OF TODAY
East winds 20 knots. Wind waves 6 feet.
Scattered showers late in the morning, then isolated showers in
the afternoon.

TONIGHT
Northeast winds 20 knots. Wind waves 6 feet. Scattered
showers.

SUNDAY
Northeast winds 15 knots. Wind waves 4 feet. Scattered
showers.

SUNDAY NIGHT
East winds 20 knots. Wind waves 5 feet. Scattered
showers in the evening, then showers likely after midnight.

MONDAY
East winds 15 knots. Wind waves 5 feet. Showers likely
in the morning, then scattered showers in the afternoon.

MONDAY NIGHT
Northeast winds 20 knots. Wind waves 5 feet.
Scattered showers in the evening, then showers likely after
midnight.

TUESDAY
East winds 20 knots. Wind waves 6 to 8 feet. Southeast
swell 3 feet. Occasional showers.

WEDNESDAY
East winds to 25 knots. Wind waves 9 feet. Southeast
swell 3 feet. Scattered showers.